Timer



Oct. 7, 1924. 1,510,559

E.- SCHNEIDER E AL v TIMER Filed Jan. 6, 1923 scfincialez 6 Jfiorman Patented Oct. 7, 1924.

UNITED STATES SCHNEIDER AND JOHN GonMAN, or CLEVELAND, OHIO.

TIMER.

Application filed January 6, 1923. Serial No. 611,027.

T0 all whom it may come m;

Be it known that we, ELMEJ. SCHNEIDER and JOHN GQRMAN, the former a citizen of the United States and the latter a citizen of Canada, both residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful improvements in Timers, of which the following is a specification.

This invention relates to timers for the ignition circuit of internal-combustion engines, and more particularly to the type having a rotor 'moved by the crank shaft of the engine for making and breaking the electric circuit of the spark plugs in successive order.

The main object of the invention is to provide a timer of simple and practical design coi'istructed of a few parts which are readily assembled, and the parts subjected to the greatest wear easily replaced.

Another object of the invention is to pro vide a timer of said character which is steady and smooth in its action. reliable in operation, and will wear well.

lVith the above and other objects in view, the invention will be hereinafter fully described as illustrated in the accompanying drawings, and the novel features thereof will be distinctly pointed out in the appended claim.

In the drawings similar characters of reference are used to designate correspond ing parts. i

Figure 1 is a longitudinal sectional view of a timer constructed in accordance with our invention,

Fig. 2 is a face view of same,

Fig. 3 is an end view of the arm with the shoe pivoted thereto,

Fig, 1 is a similar view, the near lug of the arm and the near side of the shoe being broken away to better show the construction, and

Fig. 5 is a perspective view illi'istra'ting the shoe.

Referring to the drawings, 1 represents a cylindrical casing having a central hollow boss 2 which is provided at its closed end with the usual depression 3 for, receiving the spring for holding the casing in operative relation as will be understood. An operating arm 4 forms a part of said casing for adjusting the same in the well known manner. Upon the inner face 5 of the casing is arranged a disk 6 of insulation material having an outer face 7 which is provided with a plurality of equally distant recesses indicated by 8. The disk 6 is provided with center openings 9 extending from the recesses 8 to the inner face ofthe disk, and in alignment therewith the casing 1 is provided with openings 10. Binding posts 11 pass through the openings 9 of the disk and the openings 10 of the casing, and their heads 12 fit into the recesses 8 of said disk and their outer ends are flush with the outer face 7 thereof. f ashers of insulation material, indicated by 13, are arranged upon the binding posts 11, and nuts 14 thereon serve to hold said parts in position. Thumb nuts on said binding postsare adapted for attachment of the circuit wires thereto.

To the rotatably mounted timer shaft 15 is fixed a radially extending arm 16 carry ing a pair of spaced transversely extending lugs 17 and 18, between which and to same is pivoted a shoe 19 by means of a bolt 20. The shoe 19 is supported to give a rocking action in the direction of the rotary movement of said arm, and is opened therethrough at 21 for receiving a collar or sleeve 22 which is mounted upon the bolt 20. A suitable coiled spring 23 is arranged upon said collar or sleeve, one end 24 of which engages the inner side of the arm 16 and the other end 25 passes through the opening 21 of the shoe and engages the under side of its forward end bar 26. The shoe has a rounding rear end 27, which is adapted to I be resiliently held in contact with the outer face 7 of the disk 6 and the heads 12 of the binding posts 11 by the action of the coiled spring 23 for making and breaking the circuit as will be understood.

From the drawings and description, it will be readily seen that this timer is of practical construction, is convenient to assemble or replace worn parts and that it is eflicient because steady and smooth in action and reliable in operation. It will be understood that slight changes in the details of construction may be made within the scope of the claim. 5

Having fully described our invention, what we claim is:

In a timer, the combination of a plurality of contacts arranged in a circle, a rotatable and the other end thereof engaging said arni for holding said shoe in engagement with said contacts, substantially as described. 10

In testimony whereof We aiiix our signatures.

ELMER SCHNEIDER. JOHN GORMAN. 

